: :
(1) What is the electron_configuration of Be?
(2) What is the electron_configuration of B?
(3) What is the electron_configuration of Si?
(4) What is the electron_configuration of Al?
(5) What is the electron_configuration of Mg?
(6) What is the electron_configuration of C?
(7) What is the electron_configuration of P?
(8) What is the electron_configuration of He?
(9) What is the electron_configuration of Ar?
(10) What is the electron_configuration of K?